Land-roller



{No Model.)

W. WILDMAN.

LAND ROLLER.

Patented Apr. 26

UNITED STATES PATENT @rmcn.

WILLIAM NILDMAN, OF SPADBA, CALIFORNIA.

LAN D-ROLLER.

SPECIFICATION forming part of Letters Patent No. 602,968, dated April26, 1898.

Application filed August 9,1897.

To all whom may concern:

Be it known that I, WILLIAM WILDMAN, a citizen of the United States,residing at Spadra, in the county of Los Angeles and State ofCalifornia, have invented certain new and useful Improvements inLand-Rollers; and I do declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains. to make and use the same, referencebeing had to the accompanying drawing, and to the figures of referencemarked thereon, which forms a part of this specification.

The purpose of. this invention is to improve upon those land and roadrollers consisting of hollow cylinders adapted to hold water to givethem weight.

To this end my invention consists in the peculiar features andcombinations of parts more fully described hereinafter and pointed outin the claims.

The accompanying drawing represents a top view of my invention complete,in which the reference-numerals 1 and 2 denote a pair of hollow rollingcylinders having openings 3 in their outer ends, through which the fluidis to be poured.

t and 5 represent rectangular frames in which the rollers are journaled,and 6 the journals of horizontal shafts 6', passing through the centerof the rollers. A motor-wheel 30 is fixed on the shaft 6' and at apointmidway between the ends of the latter. This motorwheel consists of twocircular disks placed back to back,with a narrow space 31 intervening.They are connected together bya tube 32, which fits on the shaft. Theouter faces of the disks are each provided with fins or blades 38,radiating from the axis of the wheel. The fins have their edges fixed torevolve with the disks and are widened at their outer ends and curvedforwardly to form scoops, which engage and lift the water within thecylinder as the shaft revolves to throw it forward. This action assiststhe-wheel forward and also serves to equalize the action of the liquidfrom end to end within the cylinder. Where the shafts 6 pass through theends of the cylinders, the latter are reinforced, and

Serial No. 647,540. (No model.)

the shafts are fastened by a water-tight joint in order that no leakageshall occur at these points.

The contiguous ends of both frames are hinged to permit the rollers andframes to rise and fall in relation to each other by means of separablehinges 7. By thus hinging the rollers they will be free to accommodatethemselves to the undulations of the ground without bringing unduestrain upon the parts to pass through narrower spaces and to be rolledsingly over frail structures, such as bridges. The frames 4 and 5 areeach provided with triangular extensions 8 and 9, composed of thediagonal bars 10 and parallel straight bars 11. The forward extremitiesof the extensions are connected by a pivot-pin 12, which passes throughholes in the overlapping lugs 13 and 14, and its lower end is secured tothe top of a branching frame 16, in which travels a smaller hollowroller 17. This roller 17 serves to roll the land left untouched betweenthe larger rollers,which follow behind, and it also acts as aguide-wheel. The three rollers have the general outline of a triangle.

The front end of the frame 16 is attached to a draft-tongue 18.

19 and 20 represent a pair of brake-shoes on the short arms 21 of a pairof foot-levers 22, fulcrumed on the fore end of the frames. The longerarm 23 of the levers projects backward to a point within reach of thefeet of the operator,wh0 sits on a seat 24: in the rear. These long armsare supported between lugs 25 on the free ends of rearwardly-projectingfiat springs 26, while catches 27 project upward to catch and hold thearms down. Scrapers 28 are pivoted in the rear portion of the frame andare each provided with footlevers 29 within reach of the foot of theoperatorpvhereby the rollers can be freed from accumulations whennecessary. In freezing weather the rollers should be filled with anon-oongealable fluid, such as oil, instead of water.

To prevent indenting the rollers, they are covered with a heavy coveringof wood.

Thus constructed it will be seen that the hinged frames will freelypermit the rollers to rise and fall in relation to each other andaccommodate themselves to variations and undulations in the road or landunder treatment and should it become necessary to separate the rollersit can easily be done by pulling out the pins of the hinges and thepivotpin over the guide-roller 17. In the event of descending a gradethe brakes can be quickly and conveniently applied to check the speed.

Having thus described my invention,what I claim as new, and desire tosecure by Letters Patent, is

1. In a land-roller composed of oneor more.

hollow cylinders adapted to be filled with liquid, in combination with amotor-wheel located within the cylinder, substantially as described.

2. In a land-roller, a hollow cylinder provided with a central shaftfixed to revolve therewith, in combination with a motor-Wheel fixed onthe shaft intermediate of its ends, said wheel being provided withforwardlycurved fins or blades for the purposes substantially asdescribed.

3. In a land-roller, the combination with a hollow cylinder, of acentral shaft fixed within Witnesses:

CHARLIE WILDMAN, W. S. WINTERS.

